Why do you say that? In fact, this situation is not uncommon in rural areas. These trees grow very tall and cover all the houses. And unlike the current urban planning, people in rural areas prune trees every once in a while.
At that time, almost no one cared about trees. Although it is important to emphasize greening, the trees grow too high, so they close the house tightly. In this way, ventilation and lighting will be affected.
If the house facing south is not too serious, other houses facing south may become very wet because they can't get sunshine. Living in such a house for a long time is not good for your health. Moreover, trees grow too high, which is also dangerous to rural buildings.
In the past, the houses were all rough houses or adobe houses, which were not as strong as the reinforced concrete now. If there is a typhoon or bad weather, trees can easily fall down. Once it falls down and collapses the house, it is very dangerous.
Besides, the tree is so big that it whistles when it blows. Because there are trees all around, the noise is particularly loud. For people with poor sleep quality, it is easy to be affected.
Of course, this sentence also has a subtle meaning, which is to get along well with neighbors. Otherwise life will be unhappy. What the ancestors said is a summary of experience, which makes sense.